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Finding the Fourth Proportional to 10,487.61, 14,472.95 and 5,772.06

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Solution

The fourth proportional to 10,487.61, 14,472.95 and 5,772.06 is: 7,965.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,487.61 : 14,472.95 = 5,772.06 : x
  2. Step 2: Convert to fraction form
    10,487.61/14,472.95 = 5,772.06/x
  3. Step 3: Cross multiply
    10,487.61x = 14,472.95 × 5,772.06
  4. Step 4: Simplify right side
    10,487.61x = 83,538,706.92
  5. Step 5: Solve for x
    x = 83,538,706.92/10,487.61
  6. Step 6: Final answer
    x = 7,965.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.